Break the ANA build-target into ANA and ANA-config

This is done to solve a dependency-cycle with the RtcEventLog - now the RtcEventLog can depend on the config part of ANA, and be able to peer inside, while the implementation part of ANA can invoke the RtcEventLog.

BUG=webrtc:8111
TBR=stefan@webrtc.org

Review-Url: https://codereview.webrtc.org/3010343002
Cr-Original-Commit-Position: refs/heads/master@{#19793}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 1e7dd31001cfa13b066e27352a24947c5ff95c31
4 files changed